davis was actually paul warren pardus, age 50 of arlington, virginia. they say he pulled a semiautomatic pistol from his pants and shot the physician in the stomach. >> the doctor collapsed just outside the doorway of the room and mr. davis was last seen running into the room, brandishing the handgun in the direction of his mother who was confined to the bed. >> reporter: fox news and the baltimore sun are identifying the wounded physician as david cohen, an orthopedic surgeon. >> he was talking and everything like that and i mean he looked -- he appears to be fine to me. >> reporter: meantime nobody knew for certain what was happening inside room 873. >> my boss came running in and he told me exactly what happened, that there was a guy running around with a gun and to stay put. >> reporter: the crisis was over around 1:30. >> we were able to see that mr. davis was down on the floor suffering from an apparent gunshot wound and that his mother was also unresponsive in her bed. >> reporter: police calling it a murder suicide. now the alleged gunman's moth